Mercurial > jdk8-mips64-public > langtools / file revision

 /*

  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

  *

  * This code is free software; you can redistribute it and/or modify it

  * under the terms of the GNU General Public License version 2 only, as

  * published by the Free Software Foundation.

  *

  * This code is distributed in the hope that it will be useful, but WITHOUT

  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

  * version 2 for more details (a copy is included in the LICENSE file that

  * accompanied this code).

  *

  * You should have received a copy of the GNU General Public License version

  * 2 along with this work; if not, write to the Free Software Foundation,

  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

  *

  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

  * or visit www.oracle.com if you need additional information or have any

  * questions.

  */

 /*

  * @test

  * @bug 6695379

  * @summary Copy method annotations and parameter annotations to synthetic

  * bridge methods

  * @run main AnnotationsAreNotCopiedToBridgeMethodsTest

  */

 import java.lang.annotation.ElementType;

 import java.lang.annotation.Target;

 import java.io.BufferedInputStream;

 import java.lang.annotation.Retention;

 import java.lang.annotation.RetentionPolicy;

 import java.nio.file.Files;

 import java.nio.file.Path;

 import java.nio.file.Paths;

 import com.sun.tools.classfile.AccessFlags;

 import com.sun.tools.classfile.Attribute;

 import com.sun.tools.classfile.Attributes;

 import com.sun.tools.classfile.ClassFile;

 import com.sun.tools.classfile.Method;

 import com.sun.tools.javac.util.Assert;

 public class AnnotationsAreNotCopiedToBridgeMethodsTest {

     public static void main(String[] args) throws Exception {

         new AnnotationsAreNotCopiedToBridgeMethodsTest().run();

     }

     void run() throws Exception {

         checkClassFile(Paths.get(System.getProperty("test.classes"),

                 this.getClass().getSimpleName() + "$CovariantReturnType.class"));

         checkClassFile(Paths.get(System.getProperty("test.classes"),

                 this.getClass().getSimpleName() +

                 "$CovariantReturnType$VisibilityChange.class"));

     }

     void checkClassFile(final Path cfilePath) throws Exception {

         ClassFile classFile = ClassFile.read(

                 new BufferedInputStream(Files.newInputStream(cfilePath)));

         for (Method method : classFile.methods) {

             if (method.access_flags.is(AccessFlags.ACC_BRIDGE)) {

                 checkForAttr(method.attributes,

                         "Annotations hasn't been copied to bridge method",

                         Attribute.RuntimeVisibleAnnotations,

                         Attribute.RuntimeVisibleParameterAnnotations);

             }

         }

     }

     void checkForAttr(Attributes attrs, String errorMsg, String... attrNames) {

         for (String attrName : attrNames) {

             Assert.checkNonNull(attrs.get(attrName), errorMsg);

         }

     }

     @Target(value = {ElementType.PARAMETER})

     @Retention(RetentionPolicy.RUNTIME)

     @interface ParamAnnotation {}

     @Target(value = {ElementType.METHOD})

     @Retention(RetentionPolicy.RUNTIME)

     @interface MethodAnnotation {}

     abstract class T<A,B> {

         B m(A a){return null;}

     }

     class CovariantReturnType extends T<Integer, Integer> {

         @MethodAnnotation

         Integer m(@ParamAnnotation Integer i) {

             return i;

         }

         public class VisibilityChange extends CovariantReturnType {}

     }

 }